i currently have bought an 07 black s-max 2.0 tdci titanium with the peugeot engine fitted, between 1500-2000 rpm when feathering the throtle or easing off the car developes a slight misfire/hesitation, i think this is a common problem, my mechanic is ex ford and says its to do with the 2 stage turbo or possible map???

this has probably been covered before but id like to put my mind at ease... the car drives perfect and performs faultless apart from this..